Fotodiox Pro Lens Mount Adapter Compatible with Select M42 Screw Mount SLR Lenses to Canon RF (EOS-R) Mount Mirrorless Camera Bodies

The Fotodiox Pro line of adapters is crafted in fotodioxs factory with Excellence in mind. Our adapters are manufactured with precise tolerances, providing a solid, gap free, no wiggle connection for stress free use. No adjustments needed! Fotodiox adapters are meant to be taken off and put back on your camera as much as needed while remaining as precise as the day you bought them. Fotodiox Pro adapters feature all-metal, no plastic construction to create a secure connection between your glass and camera that will not degrade over time, keeping the lens-camera connection secure with every use. Chrome plated brass mounts for enhanced durability and reliability. Lens compatibility notice: our M42 adapter is designed to work with lenses that require a pin to be fully depressed on the rear of lens to engage the aperture. The adapter will also work with M42 lenses that have complete aperture control but do not have pins or tabs on the rear. This is important for completely mounting the lens onto the adapter. Please note that lens orientation may vary from lens to lens. Compatible Canon RF mount Mirrorless cameras include: EOS R, EOS RP Notes: This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted. 'focus-by-wire' Lenses (such as Canon's STM or Nikons AF-P) requires power to engage the manual focus rings on the lens, since manual lens mount adapters do not power the lens, those lenses will not be able to focus. set your exposure manually or meter using your camera's Aperture Priority (stop-down) mode. if your lens does not have a manual aperture control ring, The lens aperture will revert to its default position, which depending on the lens is either stopped down to its largest f-stop or opened up to its smallest f-stop. All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.